*{
    padding: 0;
    margin: 0;
}
body{
    /* display: flex; */
    justify-content: center;
    align-items: center;
    background-color: aliceblue;
}
img{
    width: 300px;
    height: 200px;
}
.main{
    display: flex;
    justify-content: center;
    align-items: center;
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(3,284px);
    overflow-y: hidden;
    padding: 50px;
}
section{
    display: flex;
    gap: 2rem;
    flex-direction: column;
}
section:nth-child(1),
section:nth-child(3){
    animation: scroller linear;
    animation-timeline: scroll(root);
    flex-direction: column-reverse;
    translate: 0% calc(-100% + 100vh);
}
section img{
    box-shadow: 0 0 10px #002;
    border-radius: 5px;
    transition: 0.3s;
}
section img:hover{
    transform:scale(1.05);
    box-shadow: 0 0 20px rgba(150,50,50,0.5);
}
@keyframes scroller{
    to{
        translate: 0% calc(100% - 100vh);
    }
}
.shell{
    width: 1000px;
    height: 200px;
    position: relative;
    left: 230px;
    background-color: rgb(121, 24, 19);
    border-radius: 25px;
    padding-top: 40px;
    padding-left: 30px;
}
.left{
    float: left;
    width: 500px;

}
.right{
    float: right;
    width: 400px;
    padding: 20px;
}
.text{
    font-size: 20px;
    font-weight: lighter;
    font-family: "华文行楷";
    color: aliceblue;
}
h2{
    font-size: 40px;
    font-weight: bold;
    font-family: "华文行楷";
    color: aliceblue;
}